Meet REN
REN is your smart running coach that evolves with you. We created REN because we believe training should adapt to your life, not the other way around.
- •Expert-backed training that adjusts to your performance and recovery
- •Seamless integration with your wearables and fitness apps
- •Real-time plan adjustments when life happens
- •Personalized insights that help you understand your progress
Built by Experts — Your Coaches
Michel Butter
One of the greatest Dutch marathoners, Michel ran a personal best of 2:09:58 and placed top 8 in Boston and NYC. A 14-time national champion, he is currently preparing athletes for the 2026 Olympics as a performance coach while bringing his elite experience to REN.
"I've trained for the biggest stages. Now I want every runner to experience training that actually adapts to them."
Guido Hartensveld
Elite coach and founder of Team Distance Runners, Guido has guided athletes to over 500 national medals and countless international championships. As Michel Butter's longtime coach, his deep expertise shapes REN's smart, adaptive training approach.
"We designed every plan inside this app to balance real life and real progress — grounded in elite methods, made for everyday runners."
Why this app is different
Built with elite insight. Personalized for your life.
Other apps give you generic plans. We deliver:
- Real-time plan updates based on your progress
- Race-ready workouts designed by elite pros
- Automatic syncing with your Garmin watch (other integrations coming Q4 2025)
No fluff. Just what works.
Train Like a Pro. On Your Terms.
Your running experience should be as unique as you are. REN's intelligent coaching adapts to your pace, goals, and schedule in real-time.
Busy lives and flexibility
Life doesn't follow a perfect schedule, and neither should your training. REN adapts to your changing needs, helping you maintain consistency without stress.
When life happens—whether it's an unexpected meeting or needing an extra rest day—REN adjusts your plan based on your activity, recovery metrics, and available time.
The result? Better consistency, fewer missed workouts, and training that fits your life instead of the other way around.
Train Like a Pro. On Your Terms.
Join our waitlist today and get early access when we launch in July, 2025.
Join the Waitlist